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Microtubules are hollow cylindrical filaments having a diameter of approximately 25 nm and a length that varies from 200 nm to 25 μm. GTP-bound tubulin subunits form αβ-heterodimers for microtubule assembly. These core building blocks interact longitudinally, polymerizing into protofilaments. The protofilaments then interact with one another through lateral bonding forces to form stable cylindrical microtubules. These cylindrical filaments are dynamic as they undergo repeated assembly and...

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Related Experiment Video

Updated: Jul 7, 2026

High-resolution Imaging and Analysis of Individual Astral Microtubule Dynamics in Budding Yeast

High-resolution Imaging and Analysis of Individual Astral Microtubule Dynamics in Budding Yeast

Published on: April 20, 2017

Microtubule dynamics regulated by stathmin.

Kh Budhachandra¹, R K Brojen Singh, G I Menon

¹Computational Neuroscience and Neuroimaging Laboratory, National Brain Research Centre, Manesar, Gurgaon 122050, India.

Computational Biology and Chemistry

|March 4, 2008

Summary

This study explores spatial regulation of microtubule growth using stathmin-tubulin interaction gradients. Computer simulations show these gradients effectively control microtubule growth, matching experimental findings.

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Area of Science:

Cell Biology
Biophysics

Background:

Microtubules are crucial for intracellular transport and cell division.
The precise mechanisms regulating microtubule growth remain incompletely understood.

Purpose of the Study:

To investigate the potential role of spatial stathmin-tubulin interaction gradients in regulating microtubule growth.
To model and simulate microtubule dynamics influenced by these gradients.

Main Methods:

Development of a computational model based on recent experimental findings.
Computer simulations to analyze microtubule growth under varying stathmin-tubulin interaction gradients.

Main Results:

Simulations demonstrated that stathmin-tubulin interaction gradients can indeed regulate microtubule growth.
The simulated regulated growth patterns align with experimental observations.

Conclusions:

Spatial gradients of stathmin-tubulin interactions offer a plausible mechanism for controlling microtubule growth.
Future research could explore dynamic stathmin-tubulin gradients and their effects on microtubule dynamics.